package vault

import (
	"encoding/json"
	"os"
)

func WithPassphrase(passphrase string) InitOption {
	return initOptionFunc(func(vault *Vault) error {
		vault.passphrase = passphrase
		return nil
	})
}

func WithPassphraseFile(path string) InitOption {
	return initOptionFunc(func(vault *Vault) error {
		passphrase, err := os.ReadFile(path)
		if err != nil {
			return err
		}

		vault.passphrase = string(passphrase)
		return nil
	})
}

func WithLoadFromPath(path string) InitOption {
	return initOptionFunc(func(vault *Vault) error {
		vaultFile, err := os.Open(path)
		if err != nil {
			if os.IsNotExist(err) {
				return nil
			}
			return err
		}

		defer func() {
			_ = vaultFile.Close()
		}()

		dec := json.NewDecoder(vaultFile)
		if err := dec.Decode(vault); err != nil {
			return err
		}

		return nil
	})
}

func WithEncryption(encryption Encryption) InitOption {
	return initOptionFunc(func(vault *Vault) error {
		vault.encryption = encryption
		return nil
	})
}